﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ex3
{
    class Program
    {
        static void Main(string[] args)
        {
            int x;
            int y = 90;
            float a, b, c;
            const double PI = 3.1415926;
            a = 90.8F;
            decimal employSalary = 0.0m;

            int[] num = new int[100];//引用型变量num



        }
    }
}
